Baby-carriage



J. BAK. BABY CARRIAGE. APPLICATION FILED June I5. |920.

Patented Mar. 22, 1921.

2 SHEETS-SHEET l.

J0 V J0 atto: ne g J. BAK.

BABY CARRIAGE. APPLICATION FILED JUNE I5, 1920.

lPatented Mar. 22, 1921.

2 SHEETS-SHEET 2.

FIG.. I l. JJv zz f2@ il swinging frame JOZEF BAK, OF CHICAGO, ILLINOIS.

annif-CARRIAGE.

Specication of Letters Patent.

Patented Mai'. 22, 1921.

Application filed June 15, 1920. Serial No. 389,177.

To aZZfwwm it may concer/n: y

Be it known that I, JOZEF BAK, a citizen of Poland7 residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Baby-Carriages, of which the following is a specification.

This invention relates to certain new and useful improvements in baby carriages and particularly to that type wherein the basket or body carrying portion of the carriage is swingingly mounted.

A further object of the invention is to provide a baby carriage having a swinging body carrying portion with a spring motor associated therewith 'for oscillating the carriage body and being controllable to hold the body stationary.

With the above and other objects in view, the present invention consists in the novel form, combination and arrangement of arts hereinafter more fully described and s own in the accompanying drawings, wherein like reference characters indicate similar parts throughout the several views.

In the drawings,

Figure 1 is a side elevational view of a baby carriage constructed in accordance with the present invention,

Fig. 2 is a top plan view of the same with the carriage body removed,

Fig. 3 is a fragmentary plan view of the supporting structure with the body supporting carriage removed,

Fig. 4 is a top plan view of the escapement mechanism removed from the spring motor and carriage body, y

Fig. 5 is a detail plan view of the escapement lever detached from the escapement mechanism, c y

Fig. 6 is a detail sectional view taken on line IV-IV of Fig. 4 showing the pawl of i the escapement lever in engagement with the teeth oi the escapement wheel,

Fig. 7 is a side elavational view4 of the carriage shifting arm detachedfrom the escapement mechanism, i 1g 8 is a fragmentary elevational view` of the stationary carriage frame and swinging frame with the motor casing thereon,

Fig. 9 is a fragmentary view showing the locked to the `stationary frame, f i

Fig. 10 is a horizontal sectional view taken on line X-X of Fig. 11,

bars 7.

Fig. 11 is a vertical sectional view through i the motor casing,

Fig. 12 is a cross sectional view taken on im@ Xn-.Xn of Fig. ii,

Fig. 18 is an elevational `view of a modified .torni ot the escapeinent pawl, and

Fig. 14 isa cross sectional view taken on line XIV-XIV of Fig. 9.

Referring more in detail to the accompanying drawings, there is illustrated a babyl carriage embodying a stationary frame, a swinging frame and a carriage body. The stationary frame embodies side bars 1 mounted on axles 2 and 3 which carry wheels 4. The rear ends of the side bars 1 extend upwardly to provide handle bars 5 with a cross hand grip 6 at the upper ends while the forward ends to the bars 1 are bent upwardly to provide mounting arms 7 as shown-more clearly in Figs. 1 and 2, the

`stationary frame bars'being substantially U-shaped in side elevation.

The swinging iframe is of similar con struction to the stationary frame and embodies lower horizontal side rails 8 having upwardly directed end bars 9 that are swingingly .mounted at their upper ends as by cleats 10 upon the handle bars 5 and the foot The side rails 8 of the swinging frame are maintained in spaced relation by the cross braces 11. As shown more clearly in Fig. 1, spring members l2 are mounted on the swinging frame and support any proper type of carriage body 13.

Itis intended that the carriage body 13 and swinging `frame move laterally of the stationary frame in a swinging movement 4suspended from the cleats 10 and to effect 'such swinging movement, there is provided a spring motor supported on the stationary frame and embodying an oscillating arm Jfor engagement with the frame for moving the same. The spring motor embodies a vertical shaft 14 journaled at its upper and lower ends in straps 15 and 16, which straps are connected as at 17 and supported on the rear axle 2. A band spring 18 surrounds the shaft 14 and is connected at one end to said shaft while the other end of the spring is connected to the strap bearing 16 as shown more clearly in Fig. 1. `The winding ofthe spring and manual rotation `oi the shaft 14 is eiected by the crankshaft 19 rotatably mounted in the strap bearing 16 and carrying a bevel pinion 20 upon the inner end :the bifurcated free end 33 of the escapement lever 27 While the adjacent end 34 of the arm 22, the pawl 23 being maintained in .escapement wheel 26. 130,'sh'ovvn in detail in thereof for constant engagement with the bevel gear 21 iXed to the shaft 14 above the spring 18. In order to maintain the spring 18 in a wound condition with the shaft 1 under tension, there is provided a ratchet Wheel 22 keyed to the shaft 14 adjacent the `upper end thereof and adapted to be engaged by the pawl 23 pivoted upon the disk 24 that is freely rotatable on the shaft above the ratchet wheel constant engagement with the ratchet wheel lunder the influence of the spring 25. A toothed escapement wheel 2G is freely rotatable on the shaft 14 and is fixed to the disk 24.

The escapement lever is associated with the wheel 26 embodying an arm 27 pivoted as at 28 in the strap bearing 15 and carrying an escapement pawl 29 intermediate the ends thereof for engagement with the teeth of the An oscillating arm Figs. 4, 7, and 10 is pivotedY as at31 upon the strap bearing` 15 and has a lug projection 32 that extends int-o coperates with the teeth of the escapement-wheel 26. VThe operation of the escapement mechanism which will be presently ldescribed causes an oscillation of the arm 30,

' tthe outer free end of which engages a pin 35 Neo' upon one of the cross braces 11 of the swinging Aframe to oscillate the frame and body carried thereby.

In placing the spring 18 under tension,

the crank shaft 19 is rotated, which movementis communicated to the shaft 14 by the meshing gears 2O and 21, the spring thereby being placed under tension while the ratchet wheel 22 k'freely rides over the .'pawl23v andV is prevented from retrograde vmovement by said pawl f is in the position shown in Figs. 4 and 10, 45

its balancing position and the pin 35 upon 4ij'hecros's bar 11` is in engagement with the ree When the arm 30 the carriage body 13 is moved to one side of end of the arm 30 to move the same `upon its pivot 31. This movement of the yarm 30 causes the lug projection 32 thereof VVthat freely extends into the bifurcated end 33 of the escapement lever 27 to move the leveron its pivot 28 to free the pawl 29 from engagement VWith the adjacent tooth 0f the escapement wheel26, during which time the carriage body 13 isV swinging in one direction while the terminal projection 34 upon engagement with a e larm to reversely shift the escapement lever 27 and to cause the )avvl 29 to engage the escapement wheel. rlhe carriage body 13 again being overbalanced will repeat the pivotal movement of the arm 30 so that the spring- 18 rotating the shaft 14 will cause a continuous operation of the escapement mechanism. When it is desired to retain the swinging` carriage stationary, the notched arm 3G pivoted aS at 37 to the handle bar 5 has the notched end thereof moved into engagement with the adjacent extension arm 9 of the swinging frame.

A modification of the escapenient pawl 29 is shown in Fig. 13 wherein the pawl 29 carriesa spring finger 38 that is adapted for engagement with the teeth of the eseapemcnt wheel 26 while the cushion block 39 upon the pawl 29 absorbs the shock of the operation of the spring and also presents an escupement mechanism that is noiseless.

Wlhile the preferred forms of the invention are herein shown and described, it is nevertheless to be understood that minor changes may be made therein without dcparting from the spirit and scope of the in vention as hereinafter claimed.

What is claimed as new is:

1. A baby carriage of the type described comprising a stationary frame, a movable frame swingingly mounted thereon, a carriage body carried by the swinging frame, means carried by the stationary frame and engaging the swingingly mounted frame to shift the same, said means including a tensioned shaft, an escapement mechanism operated by said shaft, said eseapemcnt mechanism embodying a wheel, a lever pivoted adjacent said wheel and carrying a pawl for engagement with the wheel, an arm adapted to be operated by the movement of said lever jection carriedby said arm extending into said bifurcation to effect the shifting of said arm.

2. A baby carriage ofthe type described comprising a stationary frame, amovable frame swingingly mounted thereon, a carriage body carried by the swinging frame,

means carried by the stationary frame and engaging the swingingly mounted frame to shift the same, said means including a tensioned shaft, an escapement mechanism operated by said shaft, said escapement mechanism embodying a wheel, a lever pivoted adjacent said wheel and carrying a pawl for engagement with the wheel, an arm adapted to be operated by the movement of said lever to shift the swinging frame, and a cushioned spring finger carried by the pawl for engagement with the escapement wheel.

In testimony whereof I afiix my signature.

JOZEF han.. 

